Check the wall outlet to be sure it is providing power. Use a lamp or a fan or other electrical device to be sure that outlet provides power. Check the power surge supression strip, and ensure it is switched on if it has a switch, and it it has a fuse reset button, push that in or push it to the reset position. Recheck the connection of the wall connector cable to the small DC converter box. Finally recheck the connection of the end of the power cable where it connects to the PC. If the Tablet still does not show a green light indicator on the front, try removing the battery. The TC1100 works with the battery completely removed. If you have power but no display, then the problem could be with the display. I suggest that since there are a lot of problems with the older tablet PCs, that if you still have problems with it and do not really need that type, check out the new low priced Atom processor netbooks and the new moderately priced Intel Core2 Duo notebook PCs and AMD dual core and tri-core notebook PCs, with plenty of RAM like 2GB or more, and preferably dedicated video RAM, like an NVideo or ATI video that provides 64MB or 128MB or 256 MB or 512MB or more of dedicated video memory. Back to your TC, ensure it has good power, then look to possible bigger issues that power or power adapter - the CPU or board could be bad, or it may boot up but not display because of a problem with video on board or in the connector to the screen or in the screen circuitry.

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boot into Safe Mode. To do this, press F8 while your computer is booting. Once in safe mode, you can try going into the control panel and reset your password. If you can't, you can try and open up a Command Prompt by opening Run and typing cmd. Enter net user [username] [enternewpassword]. For example, If I want to change my account which is Jack to password abcde, I would type in net user jack abcde and press enter. Your password should now be changed.

There is one way to get the PC working.You can boot the computer from a windows cd.insert the cd in and then reboot the system.before it goes into the boot screen click F8,It will display a menu asking you how you want to boot the system.Choose the disc drive and you can now either repair or reinstall windows.reinstalling will delete all the data in the computer,But you will have a control of the PC again.Hope this helps.

if none of the keys respond and this just recently started, try turning off the laptop, then take out the battery and AC adapter. Hold the power button for about 10 seconds which discharges any power left. Connect the battery and AC adapter, restart the computer in Safe Mode and test the keyboard. If it does not work, try going to the Device Manager and uninstall the existing driver for the keyboard and let the OS detect it again. If this does not work, Dell has a utility to run a diagnostics on its component like the keyboard. You can look for a Utilities CD that came with your laptop and boot from it, then run the Customize Test option and look for the keyboard test. This will help you check if the keyboard is worklng.

What? No, that's pretty whacked. Does it happen in all OS, even if you boot to a LiveCD? I think your OS has a wacky driver or IME loaded for it, but it could be an unplugged (or bad USB connection) thing all right. Get in there and confirm your connections are solid, and check your IME (input method filter, e.g. for typing in Thai.)